Numerical study has been carried out to investigate the impacts of suction and buoyancy force on heat transfer flow past a vertically moving plate in carbon nanotubes. Two kinds of base fluids, particularly water and kerosene, with single-walled and multi-walled carbon nanotubes are adopted in this analysis. The governing equations for this study are solved using the similarity transformation. The resulting equations are solved using Matlab’s built in function (bvp4c) numerically. The effect of mixed parameter, moving parameter, suction parameter, nanoparticle volume fraction parameter on the reduced heat transfer, skin friction, local Nusselt number, local skin friction along with velocity and temperature profiles are presented in graphical form and discussed in details. Multiple solutions are visible for certain range of governing parameters and hence the analysis on stability of solutions has been executed to show that the first solution is stable while the second solution is unstable. It is found that multi wall carbon nanotube offer higher heat transfer rate compared to single wall carbon nanotube. The range of solution to exist when adding 0.1 nanoparticle volume fraction shows an increment of 0.511. Hence, it is concluded that addition of nanoparticle volume fraction could delay the boundary layer separation to occur. Meanwhile, suction parameter decelerates the separation of boundary layer flow.

已经进行了数值研究以研究吸力和浮力对通过碳纳米管中的垂直移动板的传热流的影响。该分析采用两种基础流体，特别是水和煤油，分别具有单壁和多壁碳纳米管。本研究的控制方程使用相似变换求解。使用Matlab的内置函数（bvp4c）可以对所得方程进行数值求解。混合参数，运动参数，吸力参数，纳米颗粒体积分数参数对减少的传热，皮肤摩擦，局部努塞尔数，局部皮肤摩擦以及速度和温度分布的影响以图形形式呈现，并进行了详细讨论。对于一定范围的控制参数，可以看到多个解决方案，因此对解决方案的稳定性进行了分析，以表明第一个解决方案是稳定的，而第二个解决方案是不稳定的。已经发现，与单壁碳纳米管相比，多壁碳纳米管提供更高的传热速率。当添加0.1纳米颗粒体积分数时，溶液存在的范围显示出0.511的增量。因此，可以得出结论，纳米颗粒体积分数的添加可以延迟边界层分离的发生。同时，吸力参数使边界层流的分离减慢。发现与单壁碳纳米管相比，多壁碳纳米管提供更高的传热速率。当添加0.1纳米颗粒体积分数时，溶液存在的范围显示出0.511的增量。因此，可以得出结论，纳米颗粒体积分数的添加可以延迟边界层分离的发生。同时，吸力参数使边界层流的分离减慢。发现与单壁碳纳米管相比，多壁碳纳米管提供更高的传热速率。当添加0.1纳米颗粒体积分数时，溶液存在的范围显示出0.511的增量。因此，可以得出结论，纳米颗粒体积分数的添加可以延迟边界层分离的发生。同时，吸力参数使边界层流的分离减慢。